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* ata: parport_pc: add 16-bit and 8-bit fast EPP transfer flagsOndrej Zary2023-03-231-4/+16
| | | | | | | | | | PARPORT_EPP_FAST flag currently uses 32-bit I/O port access for data read/write (insl/outsl). Add PARPORT_EPP_FAST_16 and PARPORT_EPP_FAST_8 that use insw/outsw and insb/outsb (and PARPORT_EPP_FAST_32 as alias for PARPORT_EPP_FAST). Signed-off-by: Ondrej Zary <linux@zary.sk> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
* Merge tag 'char-misc-6.3-rc1' of ↵Linus Torvalds2023-02-241-39/+86
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc and other driver subsystem updates from Greg KH: "Here is the large set of driver changes for char/misc drivers and other smaller driver subsystems that flow through this git tree. Included in here are: - New IIO drivers and features and improvments in that subsystem - New hwtracing drivers and additions to that subsystem - lots of interconnect changes and new drivers as that subsystem seems under very active development recently. This required also merging in the icc subsystem changes through this tree. - FPGA driver updates - counter subsystem and driver updates - MHI driver updates - nvmem driver updates - documentation updates - Other smaller driver updates and fixes, full details in the shortlog All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (223 commits) scripts/tags.sh: fix incompatibility with PCRE2 firmware: coreboot: Remove GOOGLE_COREBOOT_TABLE_ACPI/OF Kconfig entries mei: lower the log level for non-fatal failed messages mei: bus: disallow driver match while dismantling device misc: vmw_balloon: fix memory leak with using debugfs_lookup() nvmem: stm32: fix OPTEE dependency dt-bindings: nvmem: qfprom: add IPQ8074 compatible nvmem: qcom-spmi-sdam: register at device init time nvmem: rave-sp-eeprm: fix kernel-doc bad line warning nvmem: stm32: detect bsec pta presence for STM32MP15x nvmem: stm32: add OP-TEE support for STM32MP13x nvmem: core: use nvmem_add_one_cell() in nvmem_add_cells_from_of() nvmem: core: add nvmem_add_one_cell() nvmem: core: drop the removal of the cells in nvmem_add_cells() nvmem: core: move struct nvmem_cell_info to nvmem-provider.h nvmem: core: add an index parameter to the cell of: property: add #nvmem-cell-cells property of: property: make #.*-cells optional for simple props of: base: add of_parse_phandle_with_optional_args() net: add helper eth_addr_add() ...
| * parport_pc: Limit the number of PCI BAR pairs to 2Maciej W. Rozycki2023-01-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | Decrease the number of PCI BAR pair slots allocated for port subdrivers from 4 to 2 as none wants more than 2 at this time, reducing the memory footprint a little. No functional change. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230108215656.6433-7-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport_pc: Set up mode and ECR masks for Oxford Semiconductor devicesMaciej W. Rozycki2023-01-201-6/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No Oxford Semiconductor PCI or PCIe parallel port device supports the Parallel Port FIFO mode. All support the PS/2 Parallel Port mode and the Enhanced Parallel Port mode via the ECR register. The original 5V PCI OX16PCI954 device does not support the Extended Capabilities Port mode, the Test mode or the Configuration mode, but all the other OxSemi devices do, including in particular the 3.3V PCI OXmPCI954 device and the universal voltage PCI OXuPCI954 device. All the unsupported modes are marked reserved in the relevant datasheets. Accordingly enable the `base_hi' BAR for the 954 devices to enable PS2 and EPP mode support via the ECR register, however mask the COMPAT mode and, until we have a way to determine what chip variant it is that we poke at, also the ECP mode, and mask the COMPAT mode only for all the remaining OxSemi devices, fixing errors like: parport0: FIFO is stuck FIFO write timed out and a non-functional port when the Parallel Port FIFO mode is selected. Complementing the fix apply an ECR mask for all these devices, which are documented to only permit writing to the mode field of the ECR register with a bit pattern of 00001 required to be written to bits 4:0 on mode field writes. No nFault or service interrupts are implemented, which will therefore never have to be enabled, though bit 2 does report the FIFO threshold status to be polled for in the ECP mode where supported. We have a documented case of writing 1 to bit 2 causing a lock-up with at least one OX12PCI840 device (from old drivers/parport/ChangeLog): 2001-10-10 Tim Waugh <twaugh@redhat.com> * parport_pc.c: Support for OX12PCI840 PCI card (reported by mk@daveg.com). Lock-ups diagnosed by Ronnie Arosa (and now we just don't trust its ECR). which commit adbd321a17cc ("parport_pc: add base_hi BAR for oxsemi_840") must have broken and by applying an ECR mask here we prevent the lock-up from triggering. This could have been the reason for requiring 00001 to be written to bits 4:0 of ECR. Update the inline comment accordingly; it has come from Linux 2.4.12 back in 2001 and predates the introduction of OXmPCI954 and OXuPCI954 devices that do support ECP. References: [1] "OX16PCI954 Integrated Quad UART and PCI interface", Oxford Semiconductor Ltd., Data Sheet Revision 1.3, Feb. 1999, Chapter 9 "Bidirectional Parallel Port", pp. 53-55 [2] "OX16PCI952 Data Sheet, Integrated High Performance Dual UARTs, Parallel Port and 5.0v PCI interface", Oxford Semiconductor Ltd., DS_B008A_00, Datasheet rev 1.1, June 2001, Chapter 8 "Bi-directional Parallel Port", pp. 52-56 [3] "OXmPCI954 DATA SHEET Integrated High Performance Quad UARTs, 8-bit Local Bus/Parallel Port. 3.3v PCI/miniPCI interface.", Oxford Semiconductor Ltd., DS-0019, June 2005, Chapter 10 "Bidirectional Parallel Port", pp. 86-90 [4] "OXmPCI952 Data Sheet, Integrated High Performance Dual UARTs, 8-bit Local Bus/Parallel Port. 3.3v PCI/miniPCI interface.", Oxford Semiconductor Ltd., DS-0020, June 2005, Chapter 8 "Bidirectional Parallel Port", pp. 73-77 [5] "OX12PCI840 Integrated Parallel Port and PCI interface", Oxford Semiconductor Ltd., DS-0021, Jun 2005, Chapter 5 "Bi-directional Parallel Port", pp. 18-21 [6] "OXPCIe952 PCI Express Bridge to Dual Serial & Parallel Port", Oxford Semiconductor, Inc., DS-0046, Mar 06 08, Chapter "Parallel Port Function", pp. 59-62 [7] "OXPCIe840 PCI Express Bridge to Parallel Port", Oxford Semiconductor, Inc., DS-0049, Mar 06 08, Chapter "Parallel Port Function", pp. 15-18 [8] "OXuPCI954 Data Sheet, Integrated High Performance Quad UARTs, 8-bit Local Bus/Parallel Port, 3.3 V and 5 V (Universal Voltage) PCI Interface.", Oxford Semiconductor, Inc., DS-0058, 26 Jan 2009, Chapter 8 "Bidirectional Parallel Port", pp. 62-65 [9] "OXuPCI952 Data Sheet, Integrated High Performance Dual UARTs, 8-bit Local Bus/Parallel Port, 3.3 V and 5.0 V Universal Voltage PCI Interface.", Oxford Semiconductor, Inc., DS-0059, Sep 2007, Chapter 8 "Bidirectional Parallel Port", pp. 61-64 Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230108215656.6433-6-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport_pc: Add an ECR mask field for PCI devicesMaciej W. Rozycki2023-01-201-1/+6
| | | | | | | | | | | | | | | | | | | | Add a bitmask field specifying writable ECR bits for PCI devices and apply it via `__parport_pc_probe_port'. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230108215656.6433-5-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport_pc: Add a mode mask field for PCI devicesMaciej W. Rozycki2023-01-201-3/+7
| | | | | | | | | | | | | | | | | | | | Add a mode mask field for PCI devices and use `__parport_pc_probe_port' in place of `parport_pc_probe_port' to apply it. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230108215656.6433-4-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport_pc: Let chipset drivers mask ECR bits on writesMaciej W. Rozycki2023-01-201-17/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Provide an `ecr_writable' parameter to `__parport_pc_probe_port' so that callers can specify a mask of bits to modify on ECR writes. To avoid the need for separate bit set and bit clear masks always set bit 0 whenever a non-zero mask has been set, as all the currently known cases where a mask is required, that is Oxford Semiconductor devices, do require this bit to be set. If further cases are discovered where the bit is required to be clear, we can update code accordingly, but chances are very low as the bit is supposed to be read-only[1]. Skip ECR probing, which can be problematic as the Oxford Semiconductor OX12PCI840 part has been reported to lock up on setting bit 2, whenever a non-zero mask has been requested by a port subdriver, assuming that the ECR must be there if the subdriver has requested a specific way to access it. References: [1] "Extended Capabilities Port Protocol and ISA Interface Standard", Microsoft Corporation, Revision: 1.14, July 14, 1993, Table 14 "Extended Control Register" Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230108215656.6433-3-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport_pc: Let chipset drivers mask unsupported modesMaciej W. Rozycki2023-01-201-12/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename `parport_pc_probe_port' to `__parport_pc_probe_port' and add a `mode_mask' parameter so that callers can specify a mask of unsupported modes to exclude even if mode probing seems to indicate otherwise. Add a `parport_pc_probe_port' wrapper with an implicit mask of 0 for the current callers to use. No functional change at this point, but the configuration of data write handlers is now no longer intertwined with determination and reporting of available modes. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230108215656.6433-2-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport_pc: Remove stale `parport_pc_ecp_read_block_pio' referenceMaciej W. Rozycki2023-01-201-2/+0
| | | | | | | | | | | | | | | | | | | | | | Complement commit 991214386dee ("parport: remove unused dead code from lowlevel drivers") and remove a stale piece of commented-out code that refers to a function removed with said commit. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230108215656.6433-1-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | parport: remove ax88796 driverArnd Bergmann2023-01-163-430/+0
|/ | | | | | | | The s3c24xx bast platform was removed, so this driver has no users any more and can be removed as well. Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* parport_pc: Avoid FIFO port location truncationMaciej W. Rozycki2022-11-091-1/+1
| | | | | | | | | | | | | | | | Match the data type of a temporary holding a reference to the FIFO port with the type of the original reference coming from `struct parport', avoiding data truncation with LP64 ports such as SPARC64 that refer to PCI port I/O locations via their corresponding MMIO addresses and will therefore have non-zero bits in the high 32-bit part of the reference. And in any case it is cleaner to have the data types matching here. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Link: https://lore.kernel.org/linux-pci/20220419033752.GA1101844@bhelgaas/ Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/alpine.DEB.2.21.2209231912550.29493@angie.orcam.me.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* parport: add support for Netmos device 9900Alexander Baehr2022-09-011-0/+4
| | | | | | | | | | The Netmos parallel port 9901 was already supported but the device 9900 was not. This patch adds the required settings for it and was successfully tested with the Netmos device 9900. Signed-off-by: Alexander Baehr <abaehr@osadl.org> Link: https://lore.kernel.org/r/20220806113334.264598686@osadl.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* parport_pc: Also enable driver for PCI systemsMaciej W. Rozycki2022-03-181-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nowadays PC-style parallel ports come in the form of PCI and PCIe option cards and there are some combined parallel/serial option cards as well that we handle in the parport subsystem. There is nothing in particular that would prevent them from being used in any system equipped with PCI or PCIe connectivity, except that we do not permit the PARPORT_PC config option to be selected for platforms for which ARCH_MIGHT_HAVE_PC_PARPORT has not been set for. The only PCI platforms that actually can't make use of PC-style parallel port hardware are those newer PCIe systems that have no support for I/O cycles in the host bridge, required by such parallel ports. Notably, this includes the s390 arch, which has port I/O accessors that cause compilation warnings (promoted to errors with `-Werror'), and there are other cases such as the POWER9 PHB4 device, though this one has variable port I/O accessors that depend on the particular system. Also it is not clear whether the serial port side of devices enabled by PARPORT_SERIAL uses port I/O or MMIO. Finally Super I/O solutions are always either ISA or platform devices. Make the PARPORT_PC option selectable also for PCI systems then, except for the s390 arch, however limit the availability of PARPORT_PC_SUPERIO to platforms that enable ARCH_MIGHT_HAVE_PC_PARPORT. Update platforms accordingly for the required <asm/parport.h> header. Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Link: https://lore.kernel.org/r/alpine.DEB.2.21.2202141955550.34636@angie.orcam.me.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'for-5.15/parisc' of ↵Linus Torvalds2021-09-021-5/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc architecture updates from Helge Deller: - Fix a kernel crash when a signal is delivered to bad userspace stack - Fix fall-through warnings in math-emu code - Increase size of gcc stack frame check - Switch coding from 'pci_' to 'dma_' API - Make struct parisc_driver::remove() return void - Some parisc related Makefile changes - Minor cleanups, e.g. change to octal permissions, fix macro collisions, fix PMD_ORDER collision, replace spaces with tabs * tag 'for-5.15/parisc' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: math-emu: Fix fall-through warnings parisc: fix crash with signals and alloca parisc: Fix compile failure when building 64-bit kernel natively parisc: ccio-dma.c: Added tab instead of spaces parisc/parport_gsc: switch from 'pci_' to 'dma_' API parisc: move core-y in arch/parisc/Makefile to arch/parisc/Kbuild parisc: switch from 'pci_' to 'dma_' API parisc: Make struct parisc_driver::remove() return void parisc: remove unused arch/parisc/boot/install.sh and its phony target parisc: Rename PMD_ORDER to PMD_TABLE_ORDER parisc: math-emu: Avoid "fmt" macro collision parisc: Increase size of gcc stack frame check parisc: Replace symbolic permissions with octal permissions
| * parisc/parport_gsc: switch from 'pci_' to 'dma_' APIChristophe JAILLET2021-08-301-3/+2
| | | | | | | | | | | | | | The wrappers in include/linux/pci-dma-compat.h should go away. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Helge Deller <deller@gmx.de>
| * parisc: Make struct parisc_driver::remove() return voidUwe Kleine-König2021-08-301-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The caller of this function (parisc_driver_remove() in arch/parisc/kernel/drivers.c) ignores the return value, so better don't return any value at all to not wake wrong expectations in driver authors. The only function that could return a non-zero value before was ipmi_parisc_remove() which returns the return value of ipmi_si_remove_by_dev(). Make this function return void, too, as for all other callers the value is ignored, too. Also fold in a small checkpatch fix for: WARNING: Unnecessary space before function pointer arguments + void (*remove) (struct parisc_device *dev); Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> (for drivers/input) Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Acked-by: Jiri Slaby <jirislaby@kernel.org> Signed-off-by: Helge Deller <deller@gmx.de>
* | parport: remove non-zero check on countColin Ian King2021-08-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The check for count appears to be incorrect since a non-zero count check occurs a couple of statements earlier. Currently the check is always false and the dev->port->irq != PARPORT_IRQ_NONE part of the check is never tested and the if statement is dead-code. Fix this by removing the check on count. Note that this code is pre-git history, so I can't find a sha for it. Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Colin Ian King <colin.king@canonical.com> Addresses-Coverity: ("Logically dead code") Link: https://lore.kernel.org/r/20210730100710.27405-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | parport: serial: Retrieve IRQ vector with help of special getterAndy Shevchenko2021-07-291-1/+3
| | | | | | | | | | | | | | | | | | | | pci_irq_vector() may be used to retrieve IRQ vector for a PCI device. Use it instead of direct access. Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210721150216.64823-2-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | parport: serial: Get rid of IRQ_NONE abuseAndy Shevchenko2021-07-291-2/+3
|/ | | | | | | | | IRQ_NONE definition is solely for IRQ handlers and not for generic probe code. Replace it with plain integer. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210721150216.64823-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* parport: Use string_upper() instead of open coded variantAndy Shevchenko2021-05-211-8/+3
| | | | | | | | Use string_upper() from string helper module instead of open coded variant. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210518133458.20403-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* treewide: remove editor modelines and cruftMasahiro Yamada2021-05-071-12/+0
| | | | | | | | | | | | | | | | | | | | | | | | | The section "19) Editor modelines and other cruft" in Documentation/process/coding-style.rst clearly says, "Do not include any of these in source files." I recently receive a patch to explicitly add a new one. Let's do treewide cleanups, otherwise some people follow the existing code and attempt to upstream their favoriate editor setups. It is even nicer if scripts/checkpatch.pl can check it. If we like to impose coding style in an editor-independent manner, I think editorconfig (patch [1]) is a saner solution. [1] https://lore.kernel.org/lkml/20200703073143.423557-1-danny@kdrag0n.dev/ Link: https://lkml.kernel.org/r/20210324054457.1477489-1-masahiroy@kernel.org Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Miguel Ojeda <ojeda@kernel.org> [auxdisplay] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* module: remove never implemented MODULE_SUPPORTED_DEVICELeon Romanovsky2021-03-175-5/+0
| | | | | | | | | | MODULE_SUPPORTED_DEVICE was added in pre-git era and never was implemented. We can safely remove it, because the kernel has grown to have many more reliable mechanisms to determine if device is supported or not. Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* parport: fix a kernel-doc markupMauro Carvalho Chehab2021-01-211-1/+1
| | | | | | | | | | | | The kernel-doc markup inside share.c is actually for __parport_register_driver. The actual goal seems to be to document parport_register_driver(). So, fix the existing markup and add a new one. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/dc0778af8c466cc667409ead05876a5cfd3cbece.1610610937.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* treewide: Use fallthrough pseudo-keywordGustavo A. R. Silva2020-08-242-4/+4
| | | | | | | | | | Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
* treewide: replace '---help---' in Kconfig files with 'help'Masahiro Yamada2020-06-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over '---help---'"), the number of '---help---' has been gradually decreasing, but there are still more than 2400 instances. This commit finishes the conversion. While I touched the lines, I also fixed the indentation. There are a variety of indentation styles found. a) 4 spaces + '---help---' b) 7 spaces + '---help---' c) 8 spaces + '---help---' d) 1 space + 1 tab + '---help---' e) 1 tab + '---help---' (correct indentation) f) 1 tab + 1 space + '---help---' g) 1 tab + 2 spaces + '---help---' In order to convert all of them to 1 tab + 'help', I ran the following commend: $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/' Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
* Merge tag 'char-misc-5.8-rc1' of ↵Linus Torvalds2020-06-0715-636/+368
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the large set of char/misc driver patches for 5.8-rc1 Included in here are: - habanalabs driver updates, loads - mhi bus driver updates - extcon driver updates - clk driver updates (approved by the clock maintainer) - firmware driver updates - fpga driver updates - gnss driver updates - coresight driver updates - interconnect driver updates - parport driver updates (it's still alive!) - nvmem driver updates - soundwire driver updates - visorbus driver updates - w1 driver updates - various misc driver updates In short, loads of different driver subsystem updates along with the drivers as well. All have been in linux-next for a while with no reported issues" * tag 'char-misc-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (233 commits) habanalabs: correctly cast u64 to void* habanalabs: initialize variable to default value extcon: arizona: Fix runtime PM imbalance on error extcon: max14577: Add proper dt-compatible strings extcon: adc-jack: Fix an error handling path in 'adc_jack_probe()' extcon: remove redundant assignment to variable idx w1: omap-hdq: print dev_err if irq flags are not cleared w1: omap-hdq: fix interrupt handling which did show spurious timeouts w1: omap-hdq: fix return value to be -1 if there is a timeout w1: omap-hdq: cleanup to add missing newline for some dev_dbg /dev/mem: Revoke mappings when a driver claims the region misc: xilinx-sdfec: convert get_user_pages() --> pin_user_pages() misc: xilinx-sdfec: cleanup return value in xsdfec_table_write() misc: xilinx-sdfec: improve get_user_pages_fast() error handling nvmem: qfprom: remove incorrect write support habanalabs: handle MMU cache invalidation timeout habanalabs: don't allow hard reset with open processes habanalabs: GAUDI does not support soft-reset habanalabs: add print for soft reset due to event habanalabs: improve MMU cache invalidation code ...
| * parport: remove use of devmodelSudip Mukherjee2020-04-231-53/+28
| | | | | | | | | | | | | | | | | | | | Now that all the drivers using parallel port has been converted to use device model, there is no driver left which has devmodel as false. Remove the part of the code which expects devmodel can be false. Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20200403134325.11523-11-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport: remove unused parport_register_device()Sudip Mukherjee2020-04-231-192/+0
| | | | | | | | | | | | | | | | | | | | All the drivers that are using parallel port has been converted to use the new device model api, and parport_register_device() is no longer used. Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20200403134325.11523-10-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport: Add comments for parport_register_dev_model()Sudip Mukherjee2020-04-231-0/+62
| | | | | | | | | | | | | | | | | | | | In preparation to remove parport_register_device(), copy the comments to parport_register_dev_model() and modify the parameters according to what parport_register_dev_model() has. Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20200403134325.11523-9-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport: Standardize use of printmodeJoe Perches2020-04-233-11/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Standardize the define and the uses of printmode. Miscellanea: o Add missing statement termination ; where necessary Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20200403134325.11523-8-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport_pc: Convert DPRINTK to pr_debugJoe Perches2020-04-231-16/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Use a more common logging style. Miscellanea: o One message converted from KERN_INFO to KERN_DEBUG Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20200403134325.11523-7-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport_mfc3: Convert DPRINTK to pr_debugJoe Perches2020-04-231-12/+7
| | | | | | | | | | | | | | | | | | | | Use a more common logging style. Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20200403134325.11523-6-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport_amiga: Convert DPRINTK to pr_debugJoe Perches2020-04-231-13/+7
| | | | | | | | | | | | | | | | | | | | Use a more common logging style. Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20200403134325.11523-5-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport: daisy: Convert DPRINTK to pr_debugJoe Perches2020-04-231-17/+6
| | | | | | | | | | | | | | | | | | | | Use a more common logging style. Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20200403134325.11523-4-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport: Use more comon logging stylesJoe Perches2020-04-236-117/+108
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some of the logging can be poorly formatted because of unexpected line breaks given printks without KERN_CONT that should be pr_cont. Miscellanea: o Remove unnecessary spaces between function name and open parenthesis o Convert bare printks to pr_<level> where appropriate o Convert embedded function names to use %s, __func__ o Coalesce formats o Realign arguments o Use do {} while (0) in a macro and not a bare if Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20200403134325.11523-3-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport: Convert printk(KERN_<LEVEL> to pr_<level>(Joe Perches2020-04-2313-146/+110
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the more common kernel style. Miscellanea: o Coalesce formats o Realign arguments Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20200403134325.11523-2-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport: fix if-statement empty body warningsJoe Perches2020-04-232-100/+57
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Eliminate warnings by using pr_debug which is the more typical kernel debugging style and also enable dynamic_debug on these outputs. Miscellaneous: o A few messages were logged at KERN_INFO when enabled, now KERN_DEBUG o Convert %d/%d to %zd/%zu to avoid compilation warnings Original-patch-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20200403134325.11523-1-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | sysctl: pass kernel pointers to ->proc_handlerChristoph Hellwig2020-04-271-21/+18
|/ | | | | | | | | | | | | | | Instead of having all the sysctl handlers deal with user pointers, which is rather hairy in terms of the BPF interaction, copy the input to and from userspace in common code. This also means that the strings are always NUL-terminated by the common code, making the API a little bit safer. As most handler just pass through the data to one of the common handlers a lot of the changes are mechnical. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Andrey Ignatov <rdna@fb.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* parport: daisy: use new parport device modelSudip Mukherjee2019-11-131-1/+39
| | | | | | | | | | | | | | Modify parport daisy driver to use the new parallel port device model. Last attempt was '1aec4211204d ("parport: daisy: use new parport device model")' which failed as daisy was also trying to load the low level driver and that resulted in a deadlock. Cc: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Tested-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Link: https://lore.kernel.org/r/20191016144540.18810-4-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* parport: load lowlevel driver if ports not foundSudip Mukherjee2019-11-131-0/+21
| | | | | | | | | | | | | | | | | | | Usually all the distro will load the parport low level driver as part of their initialization. But we can get into a situation where all the parallel port drivers are built as module and we unload all the modules at a later time. Then if we just do "modprobe parport" it will only load the parport module and will not load the low level driver which will actually register the ports. So, check the bus if there is any parport registered, if not, load the low level driver. We can get into the above situation with all distro but only Suse has setup the alias for "parport_lowlevel" and so it only works in Suse. Users of Debian based distro will need to load the lowlevel module manually. Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20191016144540.18810-3-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* parport: do not check portlist when using device-modelSudip Mukherjee2019-11-131-3/+2
| | | | | | | | | | We do not need to maintain a list of ports when we are using the device-model. The base layer is going to maintain the list for us and we can get the list of ports just using bus_for_each_dev(). Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20191016144540.18810-2-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* parport: daisy: avoid hardcoded nameSudip Mukherjee2019-11-131-1/+1
| | | | | | | | | The daisy device name is hardcoded, define it in the header file and use it in the code. Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20191016144540.18810-1-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'char-misc-5.4-rc1' of ↵Linus Torvalds2019-09-182-5/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big char/misc driver pull request for 5.4-rc1. As has been happening in previous releases, more and more individual driver subsystem trees are ending up in here. Now if that is good or bad I can't tell, but hopefully it makes your life easier as it's more of an aggregation of trees together to one merge point for you. Anyway, lots of stuff in here: - habanalabs driver updates - thunderbolt driver updates - misc driver updates - coresight and intel_th hwtracing driver updates - fpga driver updates - extcon driver updates - some dma driver updates - char driver updates - android binder driver updates - nvmem driver updates - phy driver updates - parport driver fixes - pcmcia driver fix - uio driver updates - w1 driver updates - configfs fixes - other assorted driver updates All of these have been in linux-next for a long time with no reported issues" * tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (200 commits) misc: mic: Use PTR_ERR_OR_ZERO rather than its implementation habanalabs: correctly cast variable to __le32 habanalabs: show correct id in error print habanalabs: stop using the acronym KMD habanalabs: display card name as sensors header habanalabs: add uapi to retrieve aggregate H/W events habanalabs: add uapi to retrieve device utilization habanalabs: Make the Coresight timestamp perpetual habanalabs: explicitly set the queue-id enumerated numbers habanalabs: print to kernel log when reset is finished habanalabs: replace __le32_to_cpu with le32_to_cpu habanalabs: replace __cpu_to_le32/64 with cpu_to_le32/64 habanalabs: Handle HW_IP_INFO if device disabled or in reset habanalabs: Expose devices after initialization is done habanalabs: improve security in Debug IOCTL habanalabs: use default structure for user input in Debug IOCTL habanalabs: Add descriptive name to PSOC app status register habanalabs: Add descriptive names to PSOC scratch-pad registers habanalabs: create two char devices per ASIC habanalabs: change device_setup_cdev() to be more generic ...
| * parport: parport_serial: Use dev_get_drvdataChuhong Yuan2019-08-051-4/+2
| | | | | | | | | | | | | | | | | | | | Instead of using to_pci_dev + pci_get_drvdata, use dev_get_drvdata to make code simpler. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20190801191408.10977-3-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * parport: Add missing newline at end of fileGeert Uytterhoeven2019-08-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | "git diff" says: \ No newline at end of file after modifying the file. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20190801191408.10977-1-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | parport: parport_serial: Add support for Sunix Multi I/O boardsKai-Heng Feng2019-09-041-12/+32
|/ | | | | | | | | | | | | Sunix Multi I/O boards are different to Timedia's. This patch adds proper support for Sunix MIO boards with 1 parallel and up to 4 serial ports. Cc: Morris Ku <morris_ku@sunix.com> Cc: Debbie Liu <debbie_liu@sunix.com> Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Link: https://lore.kernel.org/r/20190809190130.30773-2-kai.heng.feng@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'docs-5.3' of git://git.lwn.net/linuxLinus Torvalds2019-07-091-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull Documentation updates from Jonathan Corbet: "It's been a relatively busy cycle for docs: - A fair pile of RST conversions, many from Mauro. These create more than the usual number of simple but annoying merge conflicts with other trees, unfortunately. He has a lot more of these waiting on the wings that, I think, will go to you directly later on. - A new document on how to use merges and rebases in kernel repos, and one on Spectre vulnerabilities. - Various improvements to the build system, including automatic markup of function() references because some people, for reasons I will never understand, were of the opinion that :c:func:``function()`` is unattractive and not fun to type. - We now recommend using sphinx 1.7, but still support back to 1.4. - Lots of smaller improvements, warning fixes, typo fixes, etc" * tag 'docs-5.3' of git://git.lwn.net/linux: (129 commits) docs: automarkup.py: ignore exceptions when seeking for xrefs docs: Move binderfs to admin-guide Disable Sphinx SmartyPants in HTML output doc: RCU callback locks need only _bh, not necessarily _irq docs: format kernel-parameters -- as code Doc : doc-guide : Fix a typo platform: x86: get rid of a non-existent document Add the RCU docs to the core-api manual Documentation: RCU: Add TOC tree hooks Documentation: RCU: Rename txt files to rst Documentation: RCU: Convert RCU UP systems to reST Documentation: RCU: Convert RCU linked list to reST Documentation: RCU: Convert RCU basic concepts to reST docs: filesystems: Remove uneeded .rst extension on toctables scripts/sphinx-pre-install: fix out-of-tree build docs: zh_CN: submitting-drivers.rst: Remove a duplicated Documentation/ Documentation: PGP: update for newer HW devices Documentation: Add section about CPU vulnerabilities for Spectre Documentation: platform: Delete x86-laptop-drivers.txt docs: Note that :c:func: should no longer be used ...
| * docs: kbuild: convert docs to ReST and rename to *.rstMauro Carvalho Chehab2019-06-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kbuild documentation clearly shows that the documents there are written at different times: some use markdown, some use their own peculiar logic to split sections. Convert everything to ReST without affecting too much the author's style and avoiding adding uneeded markups. The conversion is actually: - add blank lines and identation in order to identify paragraphs; - fix tables markups; - add some lists markups; - mark literal blocks; - adjust title markups. At its new index.rst, let's add a :orphan: while this is not linked to the main index.rst file, in order to avoid build warnings. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* | treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner2019-06-191-5/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'char-misc-5.2-rc4' of ↵Linus Torvalds2019-06-081-0/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are some small char and misc driver fixes for 5.2-rc4 to resolve a number of reported issues. The most "notable" one here is the kernel headers in proc^Wsysfs fixes. Those changes move the header file info into sysfs and fixes the build issues that you reported. Other than that, a bunch of small habanalabs driver fixes, some fpga driver fixes, and a few other tiny driver fixes. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: habanalabs: Read upper bits of trace buffer from RWPHI habanalabs: Fix virtual address access via debugfs for 2MB pages fpga: zynqmp-fpga: Correctly handle error pointer habanalabs: fix bug in checking huge page optimization habanalabs: Avoid using a non-initialized MMU cache mutex habanalabs: fix debugfs code uapi/habanalabs: add opcode for enable/disable device debug mode habanalabs: halt debug engines on user process close test_firmware: Use correct snprintf() limit genwqe: Prevent an integer overflow in the ioctl parport: Fix mem leak in parport_register_dev_model fpga: dfl: expand minor range when registering chrdev region fpga: dfl: Add lockdep classes for pdata->lock fpga: dfl: afu: Pass the correct device to dma_mapping_error() fpga: stratix10-soc: fix use-after-free on s10_init() w1: ds2408: Fix typo after 49695ac46861 (reset on output_write retry with readback) kheaders: Do not regenerate archive if config is not changed kheaders: Move from proc to sysfs lkdtm/bugs: Adjust recursion test to avoid elision lkdtm/usercopy: Moves the KERNEL_DS test to non-canonical
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